Is my EDIROL product compatible with the Microsoft Windows Vista(TM)?

I installed the driver in my Macintosh, but an error massage saying "Unable to use the function extension” appeared.

Can synchronization messages such as MIDI Clock or MTC be passed through a MIDI interface (or the MIDI interface built into a product) made by Roland/Edirol?

I've connected a MIDI device to a Macintosh via USB, and am creating a setup in Free MIDI, but the connected MIDI device is not detected (or my computer freezes).

In Macintosh OS 9, how can I see that my MIDI device is working correctly?

On Mac OS X, I can't use my Roland USB MIDI device simultaneously with the E-magic amt-8 or unitor-8.